Non-start after rebuild

[Struggler]

So! Rebuild complete and engine back in the car. Obviously it didn't start first time that would be too easy! So putting together a plan of things to check. My suspicion is that the ECU (Gen90 repined for a ph1 by yours truly) is not getting 12v.

Things to note:

• Car has not started in ~15years
• Has a brand new engine earth so not that
• Engine cranks fine but no spark, suspected no fuel either.
• Fuel pump hard wired so no issue priming

Things I'm going to check

1. 12v to ECU pin 30 constant live
2. 12v to pin 29 when ignition on
3. ECU earth continuity
4. 12v to coil pack
5. continuity between ECU and coil pack signals
6. Check relays - clean pins and use some contact cleaner - is there a specific relay that impacts 12v to the ECU/coil pack?
7. Check all fuses - clean pins and use some contact cleaner - looks from the snip below that fuse 5 might be a key one
8. Check the big white plug - clean any corrosion and use some contact cleaner
9. Clean crank sensor - check continuity to the ECU (does anyone know what pin i should confirm?)

What else do people suggest I add to this workplan?